The Prime Minister and Attorney-General said they wanted to avoid a media circus with their anti-corruption commission, but it has led to serious criticism it will be toothless and carried out in secrecy.

Newly-elected Andres Manuel Lopez Obrador is beginning his term with grand gestures of change, including putting the state-owned Mexican version of Air Force One — worth $US200 million-plus — on the market.

People think investigative journalism is about receiving brown envelopes in the mail or encrypted text messages with a story laid out, but the reality is very different, according to Head of ABC Investigations Jo Puccini.